CN109041251A - Accidental access method, device, base station, terminal and computer readable storage medium - Google Patents
Accidental access method, device, base station, terminal and computer readable storage medium Download PDFInfo
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- CN109041251A CN109041251A CN201710425875.XA CN201710425875A CN109041251A CN 109041251 A CN109041251 A CN 109041251A CN 201710425875 A CN201710425875 A CN 201710425875A CN 109041251 A CN109041251 A CN 109041251A
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- wave beam
- downlink wave
- downlink
- grouping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access, e.g. scheduled or random access
- H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]
- H04W74/0833—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access] using a random access procedure
Abstract
The invention discloses a kind of accidental access method, device, base station, terminal and storage mediums, belong to wireless communication technology field.This method comprises: sending primary and secondary synchronization signals in each downlink wave beam；Terminal into cell sends broadcast message, and the requirement of the downlink wave beam grouping information and/or the best downlink wave beam set for needing to report in random access procedure is carried in the broadcast message；After receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports, at least one downlink wave beam is selected to send subsequent downlink signal in random access procedure to terminal.The embodiment of the present invention in access procedure by using downlink multi-beam to send, avoid that the best downlink wave beam of downlink changes or the problem of bringing is not allowed in best downlink wave beam measurement, the transmission quality of downlink signal in access procedure is improved, is successfully accessed rate to improve.
Description
Technical field
The present invention relates to field of wireless communication more particularly to a kind of accidental access method, device, base station, terminal and calculating
Machine readable storage medium storing program for executing.
Background technique
In order to meet ever-increasing wireless data service demand, 5G wireless telecommunication system needs support higher data and passes
Defeated rate.While improving spectrum efficiency, new generation of wireless communication system promotes data transmission speed using bigger bandwidth
Rate.And the needs of big bandwidth are unable to satisfy in the frequency spectrum that existing communication system uses, therefore 5G system is towards higher
Frequency range development.
Since work is in high band, electromagnetic wave propagation loss increases, and transmission range reduces.For covering for lifting system
Lid, Beamforming technology become the inevitable choice of 5G.In 5G system, down channel needs a point multiple wave beams to send, and terminal exists
It needs to report oneself received downlink in RACH (Random Access Channel, random access channel) in access procedure
Beam information is sent so that base station can control subsequent downlink signal using the information.Under normal conditions, terminal can be
The optimum reception wave beam of oneself is carried in RACH, the optimum reception can be used when sending message and subsequent downlink signal in base station
Wave beam is sent.
However, the above method has the following problems: firstly, terminal can often receive multiple downlinks of base station transmission simultaneously
Wave beam, measuring the signal quality of downlink wave beam, there are errors, if best downlink wave beam judgement inaccuracy, will affect subsequent whole
A access procedure, access failure risk are larger；Secondly, the signal quality of each downlink wave beam is continually changing at any time, and
Entire access procedure time span is larger, not can guarantee best downlink wave beam be always maintained in access procedure it is constant, if most
Good downlink wave beam changes, and the best downlink wave beam signal quality originally reported deteriorates, it is also possible to lead to access failure.
Therefore, simple beam transmission can change because of the best downlink wave beam of downlink or best downlink wave beam measurement is not allowed to cause
Reliability is bad, and especially under high frequency environment, the angle of coverage of each wave beam is very narrow, and random access success rate is not high.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of accidental access method, device, base station, terminal and computers
Readable storage medium storing program for executing, to solve, the best downlink wave beam of downlink changes or caused reliability is not allowed in best downlink wave beam measurement
It is bad, to be successfully accessed probability not high.
It is as follows that the present invention solves technical solution used by above-mentioned technical problem:
According to the first aspect of the invention, a kind of accidental access method provided is applied to base station, this method comprises:
Primary and secondary synchronization signals are sent in each downlink wave beam；
Terminal into cell sends broadcast message, and the downlink wave beam grouping in random access procedure is carried in broadcast message
The requirement for the best downlink wave beam set that information and/or needs report；
After receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports, at least one downlink is selected
Wave beam sends subsequent downlink signal in random access procedure to terminal.
According to the second aspect of the invention, a kind of accidental access method provided is applied to terminal, this method comprises:
After the broadcast message for receiving base station, the downlink wave beam point in the random access procedure carried in broadcast message is extracted
The requirement for the best downlink wave beam set that group information and/or needs report；
The Reference Signal Received Power RSRP of the primary and secondary synchronization signals of each downlink wave beam received is measured, selection meets
It is required that the grouping of best downlink wave beam or best downlink wave beam set；
Best downlink wave beam grouping or best downlink wave beam set are reported by random access channel RACH.
According to the third aspect of the present invention, a kind of access device provided, is applied to base station, which includes:
Synchronization signal sending module, for sending primary and secondary synchronization signals in each downlink wave beam；
Broadcast module sends broadcast message for the terminal into cell, carries in random access procedure in broadcast message
Downlink wave beam grouping information and/or the requirement of best downlink wave beam set that needs to report；
Uplink receiving module, for receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports；
Beam selection module, for being selected under at least one from the grouping of best downlink wave beam or best downlink wave beam set
Traveling wave beam；
Downlink sending module connects at least one downlink wave beam using selection to the terminal transmission for initiating access at random
Subsequent downlink signal during entering.
According to the fourth aspect of the present invention, a kind of access device provided, is applied to terminal, which includes:
Downlink reception module after the broadcast message for receiving base station, extracts the random access carried in broadcast message
The requirement of downlink wave beam grouping information and/or the best downlink wave beam set for needing to report in the process；
Measurement module measures the RSRP of the primary and secondary synchronization signals of each downlink wave beam received, chooses satisfactory
Best downlink wave beam grouping or best downlink wave beam set；
Uplink sending module, for reporting best downlink wave beam grouping or best downlink wave beam set by RACH.
According to the fifth aspect of the present invention, a kind of base station provided includes memory, processor and is stored in described deposit
On reservoir and the computer program that can run on the processor, the computer program are realized when being executed by the processor
The step of above-mentioned accidental access method applied to base station.
According to the sixth aspect of the invention, a kind of terminal provided, comprising: memory, processor and be stored in described
It is real when the computer program is executed by the processor on memory and the computer program that can run on the processor
The step of existing above-mentioned accidental access method applied to terminal.
According to the seventh aspect of the present invention, a kind of computer readable storage medium is additionally provided, this is computer-readable to deposit
It is stored with random access procedure on storage media, when the random access procedure is executed by processor, realizes above-mentioned applied to base station
Accidental access method the step of；And/or the step of realizing the above-mentioned accidental access method applied to terminal.
Accidental access method, device, base station, terminal and computer readable storage medium provided in an embodiment of the present invention lead to
Cross the best down going wave that downlink wave beam grouping information and/or needs of the broadcast message into terminal notification random access procedure report
The requirement that constriction closes；From selection in the grouping of best downlink wave beam that terminal reports or best downlink wave beam set it is suitable it is multiple under
Traveling wave beam sends the follow-up signal in random access response and access procedure, avoid the best downlink wave beam of downlink change or
The problem of bringing is not allowed in best downlink wave beam measurement, improves the transmission quality of downlink signal in access procedure.Especially in height
Under frequency environment, the rate of being successfully accessed can be significantly improved by multi-beam transmission.
Detailed description of the invention
The hardware structural diagram of Fig. 1 terminal of each embodiment to realize the present invention.
Fig. 2 is wireless communication system schematic diagram.
Fig. 3 is the flow chart of the accidental access method applied to base station of the embodiment of the present invention 1.
Fig. 4 is the flow chart of the accidental access method applied to terminal of the embodiment of the present invention 2.
Fig. 5 is the flow chart of the accidental access method of the embodiment of the present invention 3.
Fig. 6 is the flow chart of the accidental access method of the embodiment of the present invention 4.
Fig. 7 is the function structure chart of the accidental access device applied to base station of the embodiment of the present invention 5.
Fig. 8 is the function structure chart of the accidental access device applied to terminal of the embodiment of the present invention 6.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
In order to be clearer and more clear technical problems, technical solutions and advantages to be solved, tie below
Drawings and examples are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
Terminal can be implemented in a variety of manners.For example, terminal described in the present invention may include such as set-top box, move
Dynamic terminal, smart phone, laptop, digit broadcasting receiver, PDA (personal digital assistant), PAD (tablet computer), PMP
The terminal of (portable media player), navigation device etc. and such as number TV, desktop computer etc. are fixed eventually
End.Hereinafter it is assumed that terminal is mobile terminal.However, it will be understood by those skilled in the art that in addition to being used in particular for mobile purpose
Element except, the construction of embodiment according to the present invention can also apply to the terminal of fixed type.
Referring to Fig. 1, a kind of hardware structural diagram of its terminal of each embodiment to realize the present invention, the terminal
100 may include: RF (Radio Frequency, radio frequency) unit 101, WiFi module 102, audio output unit 103, A/V
(audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, storage
The components such as device 109, processor 110 and power supply 111.It will be understood by those skilled in the art that terminal structure shown in Fig. 1
The not restriction of structure paired terminal, terminal may include than illustrating more or fewer components, perhaps combine certain components or
Different component layouts.
It is specifically introduced below with reference to all parts of the Fig. 1 to terminal:
Radio frequency unit 101 can be used for receiving and sending messages or communication process in, signal sends and receivees, specifically, by base station
Downlink information receive after, to processor 110 handle；In addition, the data of uplink are sent to base station.In general, radio frequency unit 101
Including but not limited to antenna, at least one amplifier, transceiver, coupler, low-noise amplifier, duplexer etc..In addition, penetrating
Frequency unit 101 can also be communicated with network and other equipment by wireless communication.Any communication can be used in above-mentioned wireless communication
Standard or agreement, including but not limited to GSM (Global System of Mobile communication, global system for mobile telecommunications
System), GPRS (General Packet Radio Service, general packet radio service), CDMA2000 (Code
Division Multiple Access 2000, CDMA 2000), WCDMA (Wideband Code Division
Multiple Access, wideband code division multiple access), TD-SCDMA (Time Division-Synchronous Code
Division Multiple Access, TD SDMA), FDD-LTE (Frequency Division
Duplexing-Long Term Evolution, frequency division duplex long term evolution) and TDD-LTE (Time Division
Duplexing-Long Term Evolution, time division duplex long term evolution) etc..
WiFi belongs to short range wireless transmission technology, and terminal can help user's transceiver electronics postal by WiFi module 102
Part, browsing webpage and access streaming video etc., it provides wireless broadband internet access for user.Although Fig. 1 is shown
WiFi module 102, but it is understood that, and it is not belonging to must be configured into for terminal, it can according to need do not changing completely
Become in the range of the essence of invention and omits.
Audio output unit 103 can be in call signal reception pattern, call mode, logging mode, language in terminal 100
It is radio frequency unit 101 or WiFi module 102 is received or depositing when under the isotypes such as sound recognition mode, broadcast reception mode
The audio data stored in reservoir 109 is converted into audio signal and exports to be sound.Moreover, audio output unit 103 may be used also
To provide audio output relevant to the specific function that terminal 100 executes (for example, call signal receives sound, message sink sound
Sound etc.).Audio output unit 103 may include loudspeaker, buzzer etc..
A/V input unit 104 is for receiving audio or video signal.A/V input unit 104 may include graphics processor
(Graphics Processing Unit, GPU) 1041 and microphone 1042, graphics processor 1041 is in video acquisition mode
Or the image data of the static images or video obtained in image capture mode by image capture apparatus (such as camera) carries out
Reason.Treated, and picture frame may be displayed on display unit 106.Through graphics processor 1041, treated that picture frame can be deposited
Storage is sent in memory 109 (or other storage mediums) or via radio frequency unit 101 or WiFi module 102.Mike
Wind 1042 can connect in telephone calling model, logging mode, speech recognition mode etc. operational mode via microphone 1042
Quiet down sound (audio data), and can be audio data by such acoustic processing.Audio that treated (voice) data can
To be converted to the format output that can be sent to mobile communication base station via radio frequency unit 101 in the case where telephone calling model.
Microphone 1042 can be implemented various types of noises elimination (or inhibition) algorithms and send and receive sound to eliminate (or inhibition)
The noise generated during frequency signal or interference.
Terminal 100 further includes at least one sensor 105, such as optical sensor, motion sensor and other sensors.
Specifically, optical sensor includes ambient light sensor and proximity sensor, wherein ambient light sensor can be according to ambient light
Light and shade adjusts the brightness of display panel 1061, and proximity sensor can close display panel when terminal 100 is moved in one's ear
1061 and/or backlight.As a kind of motion sensor, accelerometer sensor can detect in all directions (generally three axis) and add
The size of speed can detect that size and the direction of gravity when static, can be used to identify application (such as the horizontal/vertical screen of mobile phone posture
Switching, dependent game, magnetometer pose calibrating), Vibration identification correlation function (such as pedometer, tap) etc.；Also as mobile phone
Configurable fingerprint sensor, pressure sensor, iris sensor, molecule sensor, gyroscope, barometer, hygrometer, temperature
The other sensors such as meter, infrared sensor, details are not described herein.
Display unit 106 is for showing information input by user or being supplied to the information of user.Display unit 106 can wrap
Display panel 1061 is included, liquid crystal display (Liquid Crystal Display, LCD), Organic Light Emitting Diode can be used
Forms such as (Organic Light-Emitting Diode, OLED) configure display panel 1061.
User input unit 107 can be used for receiving the number or character information of input, and generates and set with the user of terminal
It sets and the related key signals of function control inputs.Specifically, user input unit 107 may include touch panel 1071 and its
His input equipment 1072.Touch panel 1071, also referred to as touch screen collect the touch operation (ratio of user on it or nearby
Such as user is using finger, stylus any suitable object or attachment on touch panel 1071 or near touch panel 1071
Operation), and corresponding attachment device is driven according to preset formula.Touch panel 1071 may include touch detecting apparatus
With two parts of touch controller.Wherein, the touch orientation of touch detecting apparatus detection user, and detect touch operation bring
Signal transmits a signal to touch controller；Touch controller receives touch information from touch detecting apparatus, and it is converted
At contact coordinate, then processor 110 is given, and order that processor 110 is sent can be received and executed.Furthermore, it is possible to adopt
Touch panel 1071 is realized with multiple types such as resistance-type, condenser type, infrared ray and surface acoustic waves.In addition to touch panel
1071, user input unit 107 can also include other input equipments 1072.Specifically, other input equipments 1072 can wrap
It includes but is not limited in physical keyboard, function key (such as volume control button, switch key etc.), trace ball, mouse, operating stick etc.
It is one or more, specifically herein without limitation.
Further, touch panel 1071 can cover display panel 1061, when touch panel 1071 detect on it or
After neighbouring touch operation, processor 110 is sent to determine the type of touch event, is followed by subsequent processing device 110 according to touch thing
The type of part provides corresponding visual output on display panel 1061.Although in Fig. 1, touch panel 1071 and display panel
1061 be the function that outputs and inputs of realizing terminal as two independent components, but in some embodiments it is possible to will
Touch panel 1071 and display panel 1061 integrate and realize the function that outputs and inputs of terminal, specifically herein without limitation.
Interface unit 108 be used as at least one external device (ED) connect with terminal 100 can by interface.For example, external
Device may include wired or wireless headphone port, external power supply (or battery charger) port, wired or wireless number
According to port, memory card port, port, the port audio input/output (I/O), view for connecting the device with identification module
The port frequency I/O, ear port etc..Interface unit 108 can be used for receiving the input from external device (ED) (for example, data are believed
Breath, electric power etc.) and by one or more elements that the input received is transferred in terminal 100 or can be used at end
Data are transmitted between end 100 and external device (ED).
Memory 109 can be used for storing software program and various data.Memory 109 can mainly include storing program area
The storage data area and, wherein storing program area can (such as the sound of application program needed for storage program area, at least one function
Sound playing function, image player function etc.) etc.；Storage data area can store according to mobile phone use created data (such as
Audio data, phone directory etc.) etc..In addition, memory 109 may include high-speed random access memory, it can also include non-easy
The property lost memory, a for example, at least disk memory, flush memory device or other volatile solid-state parts.
Processor 110 is the control centre of terminal, using the various pieces of various interfaces and the entire terminal of connection, is led to
It crosses operation or executes the software program and/or module being stored in memory 109, and call and be stored in memory 109
Data execute the various functions and processing data of terminal, to carry out integral monitoring to terminal.Processor 110 may include one
Or multiple processing units；Preferably, processor 110 can integrate application processor and modem processor, wherein application processing
The main processing operation system of device, user interface and application program etc., modem processor mainly handles wireless communication.It can manage
Solution, above-mentioned modem processor can not also be integrated into processor 110.
Processor 110 realizes following steps:
After the broadcast message for receiving base station, the downlink wave beam point in the random access procedure carried in broadcast message is extracted
The requirement for the best downlink wave beam set that group information or needs report；
The Reference Signal Received Power RSRP of the primary and secondary synchronization signals of each downlink wave beam received is measured, selection meets
It is required that the grouping of best downlink wave beam or best downlink wave beam set；
Best downlink wave beam grouping or best downlink wave beam set are reported by RACH.
Terminal 100 can also include the power supply 111 (such as battery) powered to all parts, it is preferred that power supply 111 can be with
It is logically contiguous by power-supply management system and processor 110, thus by power-supply management system realize management charging, electric discharge, with
And the functions such as power managed.
Although Fig. 1 is not shown, terminal 100 can also be including bluetooth module etc., and details are not described herein.
Embodiment to facilitate the understanding of the present invention, the communications network system being based below to terminal of the invention are retouched
It states.
Referring to Fig. 2, Fig. 2 is a kind of communications network system architecture diagram provided in an embodiment of the present invention, the communication network system
System is the LTE system of universal mobile communications technology, which includes UE (User Equipment, the use of successively communication connection
Family equipment) (the land Evolved UMTS Terrestrial Radio Access Network, evolved UMTS 201, E-UTRAN
Ground wireless access network) 202, EPC (Evolved Packet Core, evolved packet-based core networks) 203 and operator IP operation
204。
Specifically, UE201 can be above-mentioned terminal 100, and details are not described herein again.
E-UTRAN202 includes eNodeB2021 and other eNodeB2022 etc..Wherein, eNodeB2021 can be by returning
Journey (backhaul) (such as X2 interface) is connect with other eNodeB2022, and eNodeB2021 is connected to EPC203,
ENodeB2021 can provide the access of UE201 to EPC203.
EPC203 may include MME (Mobility Management Entity, mobility management entity) 2031, HSS
(Home Subscriber Server, home subscriber server) 2032, other MME2033, SGW (Serving Gate Way,
Gateway) 2034, PGW (PDN Gate Way, grouped data network gateway) 2035 and PCRF (Policy and
Charging Rules Function, policy and rate functional entity) 2036 etc..Wherein, MME2031 be processing UE201 and
The control node of signaling, provides carrying and connection management between EPC203.HSS2032 is all to manage for providing some registers
Such as the function of home location register (not shown) etc, and preserves some related service features, data rates etc. and use
The dedicated information in family.All customer data can be sent by SGW2034, and PGW2035 can provide the IP of UE 201
Address distribution and other functions, PCRF2036 are strategy and the charging control strategic decision-making of business data flow and IP bearing resource
Point, it selects and provides available strategy and charging control decision with charge execution function unit (not shown) for strategy.
IP operation 204 may include internet, Intranet, IMS (IP Multimedia Subsystem, IP multimedia
System) or other IP operations etc..
The processor of eNodeB2021 also executes the following steps:
Primary and secondary synchronization signals are sent in each downlink wave beam；
Terminal into cell sends broadcast message, and the downlink wave beam grouping in random access procedure is carried in broadcast message
The requirement for the best downlink wave beam set that information or needs report；
After receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports, at least one downlink is selected
Wave beam sends subsequent downlink signal in random access procedure to terminal.
Although above-mentioned be described by taking LTE system as an example, those skilled in the art should know the present invention is not only
Suitable for LTE system, be readily applicable to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA with
And the following new network system etc., herein without limitation.
Based on above-mentioned terminal hardware structure and communications network system, each embodiment of the method for the present invention is proposed.
Embodiment 1
As shown in figure 3, a kind of accidental access method provided in an embodiment of the present invention, is applied to base station, this method comprises:
S301, primary and secondary synchronization signals are sent in each downlink wave beam.
S302, the terminal into cell send broadcast message, wherein under carrying in random access procedure in broadcast message
The requirement for the best downlink wave beam set that traveling wave beam grouping information and/or needs report.
Specifically, all terminals of the base station into cell send broadcast message, SIB (System therein can be passed through
Infomation Block, system information block) x information to terminal indicates downlink wave beam grouping information in the random access procedure
And/or the requirement for the best downlink wave beam set of downlink for needing to report.Downlink wave beam grouping information includes indicating downlink wave beam point
The downlink wave beam that the number of group and each grouping include.Best downlink wave beam set requires to include: need to report is best
Maximum wave beam number is N (N is natural number, and value range arrives downlink maximum wave beam number for 1) in downlink wave beam set, is needed
RSRP (Reference Signal Receiving Power, the reference signal of wave beam in the best downlink wave beam set reported
Receiving power) thresholding be that (α is performance number to α, and value range is -130dBm to 0dBm, but the available downlink signal for terminal
Value range is generally -50dBm and arrives -30dBm).
S303, after receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports, at least one is selected
A downlink wave beam sends subsequent downlink signal in random access procedure to terminal.
Specifically, after base station receives the best downlink wave beam aggregate information that terminal reports, it can be according to online terminal
Quantity and the suitable wave beam of downlink system Capacity Selection are to improve the success rate of terminal access, select suitable wave beam to reduce down
The interference of traveling wave interfascicular, and/or the suitable wave beam of selection are to improve the utilization rate of downlink frequency domain resource, to effectively take into account downlink
The interference of channel and capacity.
As an example it is assumed that the online number of terminals of current base station is less, and the number of terminals for initiating random access simultaneously also compares
Less, base station can be used all wave beams in best downlink wave beam set and send random access response to the terminal for initiating access
With downlink signal subsequent in random access procedure.Multiple downlink wave beams simultaneously send ensure that terminal receive downlink signal can
By property, the successful probability of random access is improved.
Assuming that the online number of terminals of current base station is more, there are many terminals to wait scheduling, downlink resource is limited.Base station is such as at this time
Fruit sends subsequent downlink in random access response and random access procedure to the terminal for initiating access using multiple downlink wave beams
Signal can occupy more downlink resource, and be possible to interfere the adjacent beams of these wave beams.Base station selection is most at this time
The a subset of good downlink wave beam set sends subsequent downlink signal in random access response and random access procedure, most extremely
The case where, only use a downlink wave beam.Base station needs in downlink system capacity and improves between random access reliability at this time
Weighed.
In the embodiment of the present invention, base station by broadcast message notify terminal random access procedure in need to report it is best under
The grouping of traveling wave beam and/or best downlink wave beam set, send random access response using multiple downlink wave beams in access procedure
With subsequent downlink signal, avoid that the best downlink wave beam of downlink changes or best downlink wave beam measures inaccurate bring and asks
Topic, improves the transmission quality of downlink signal in access procedure.Especially under high frequency environment, the angle of coverage of each wave beam is very
It is narrow, the rate of being successfully accessed can be significantly improved by multi-beam transmission.
Embodiment two
As shown in figure 4, a kind of accidental access method provided in an embodiment of the present invention, is applied to terminal, this method comprises:
S401, after receiving the broadcast message of base station, the downlink in the random access procedure carried in broadcast message is extracted
The requirement for the best downlink wave beam set that wave beam grouping information or needs report.
Specifically, extracting the downlink wave beam grouping information carried in SIB, packet after terminal receives the broadcast message of base station
The downlink wave beam that the number and each grouping for including downlink wave beam grouping include.Extract the best down going wave constriction carried in SIB
The requirement of conjunction, including needing the threshold value α that maximum wave beam number is N and RSRP in the best downlink wave beam set that reports,
In, N is natural number, and value range is 1 to downlink maximum wave beam number, and α is performance number, and value range is that -130dBm arrives 0dBm,
But available downlink signal value range is generally -50dBm and arrives -30dBm for terminal.
The RSRP of the primary and secondary synchronization signals for each downlink wave beam that S402, measurement receive chooses satisfactory best
Downlink wave beam grouping or best downlink wave beam set.
Specifically, the RSRP of the primary and secondary synchronization signals for each downlink wave beam that terminal measurement receives, and to all RSRP
It is ranked up from high to low or from low to high.
When needing that best downlink wave beam is reported to be grouped, by the ranking results of RSRP and the progress of downlink wave beam grouping information
Match, chooses best downlink wave beam grouping.
When needing to report best downlink wave beam set, retain the wave beam that RSRP is more than thresholding α, is being more than the wave beam of thresholding
In, it chooses RSRP highest n and is used as best downlink wave beam set, wherein n is natural number, and n is less than or equal to N, and N expression is wanted
Seek the number of wave beam in the best downlink wave beam set reported.
It should be noted that the receiver ability of different terminals is different, terminal can be according to oneself receiver performance tune
Whole thresholding α, but must assure that the downlink signal more than thresholding adjusted can be correctly received.It is being more than the wave beam of thresholding
In, it is highest N number of as best downlink wave beam set to choose RSRP.If being more than the wave beam number deficiency N of thresholding, selection is more than
All wave beams of thresholding are as best downlink wave beam set.
S403, best downlink wave beam grouping or best downlink wave beam set are reported by RACH.
Specifically, terminal, which sends additional information bit when can be by sending leader sequence, reports best downlink wave beam point
Group or best downlink wave beam set；Or the RACH sequence of the particular demographic among the multiple RACH sequences of selection, pass through RACH sequence
Group information indicate the grouping of best downlink wave beam or best downlink wave beam set；Or the time-domain resource by sending leader sequence
Indicate best downlink wave beam grouping or best downlink wave beam set；Or under the instruction of the frequency domain resource by sending leader sequence is best
The mode of the grouping of traveling wave beam or the one or any of several combination of best downlink wave beam set carries out.
Embodiment three
It is illustrated in figure 5 a kind of flow chart of accidental access method provided in an embodiment of the present invention.This method comprises:
S501, base station send primary and secondary synchronization signals in each downlink wave beam.
All terminals of S502, base station into cell send broadcast message, wherein carry what needs reported in broadcast message
The requirement of best downlink wave beam set.
Specifically, indicating maximum wave beam in the best downlink wave beam set for needing to report by the SIB in broadcast message
The threshold value α of the Reference Signal Received Power RSRP of wave beam in number N and best downlink wave beam set, wherein N is natural number,
Value range is 1 to downlink maximum wave beam number, and α is performance number, and value range is that -130dBm arrives 0dBm.
After S503, terminal receive the broadcast message of base station, the requirement of best downlink wave beam set is extracted.
The RSRP of the primary and secondary synchronization signals for each downlink wave beam that S504, measurement receive chooses satisfactory best
Downlink wave beam set.
S505, best downlink wave beam aggregate information is reported to base station by RACH.
After S506, base station receive RACH, the best downlink wave beam aggregate information of indicating downlink in RACH is extracted.
Subset in the best downlink wave beam set of S507, base station selection sends random access response and random access to terminal
Subsequent downlink signal in the process.
Example IV
It is illustrated in figure 6 a kind of flow chart of accidental access method provided in an embodiment of the present invention.This method comprises:
S601, base station send primary and secondary synchronization signals in each downlink wave beam.
All terminals of S602, base station into cell send broadcast message, wherein downlink wave beam point is carried in broadcast message
Group information.
Specifically, all terminals of the base station into cell send broadcast message, SIBx information therein is used to refer to terminal
The pre- grouping information for showing downlink wave beam, wave beam etc. that number, each grouping including grouping include.Instruction terminal passes through upper simultaneously
Wave beam grouping is reported to carry out the best downlink wave beam set of indicating downlink.
After S603, terminal receive broadcast message, downlink wave beam grouping information is extracted.
Specifically, extracting the downlink wave beam grouping information carried in SIB, packet after terminal receives the broadcast message of base station
The downlink wave beam that the number and each grouping for including downlink wave beam grouping include.
The RSRP of the primary and secondary synchronization signals for each downlink wave beam that S604, measurement receive, chooses best downlink wave beam point
Group.
Specifically, terminal measure the RSRP of the primary and secondary synchronization signals on received each wave beam and from high to low or
It is ranked up from low to high, the pre- wave beam grouping information of the predefined downlink of result and cell of sequence is matched, choose most
Good downlink wave beam grouping.
S605, best downlink wave beam grouping information is reported to base station by RACH.
Specifically, terminal sends RACH to base station, believed by the RACH time-domain and frequency-domain resource used and RACH sequence group
It ceases to indicate the best downlink wave beam grouping of its downlink.
Best downlink wave beam grouping information is extracted in S606, base station.
At least one wave beam of S607, base station selection best downlink wave beam grouping to terminal send random access response and with
Subsequent downlink signal in machine access procedure.
In embodiments of the present invention, downlink wave beam is grouped (each wave beam in advance according to the distribution situation of downlink wave beam by base station
Group can have the wave beam of overlapping), broadcast downstream wave beam grouping information, terminal only needs to report when reporting best downlink wave beam set
Grouping information is reported without wave beam one by one, to reduce the information content that terminal reports best downlink wave beam set.
Embodiment five
It is illustrated in figure 7 a kind of function structure chart of access device provided in an embodiment of the present invention, which is applied to base
It stands, comprising:
Synchronization signal sending module 701, for sending primary and secondary synchronization signals in each downlink wave beam.
Broadcast module 702, the terminal into cell send broadcast message, wherein send for the terminal into cell wide
Broadcast information, the best downlink wave beam that the downlink wave beam grouping information in random access procedure is carried in broadcast message or needs to report
The requirement of set；
Uplink receiving module 703, for receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports；
Beam selection module 704, for selecting at least one from the grouping of best downlink wave beam or best downlink wave beam set
A downlink wave beam；
Downlink sending module 705, for use at least one downlink wave beam of selection to initiate access terminal send with
Subsequent downlink signal in machine access procedure.
Embodiment six
It is illustrated in figure 8 a kind of function structure chart of access device provided in an embodiment of the present invention, which is applied to eventually
End, comprising:
Downlink reception module 801 after the broadcast message for receiving base station, extracts connecing at random of carrying in broadcast message
The requirement of downlink wave beam grouping information or the best downlink wave beam set for needing to report during entering.
Measurement module 802, measures the RSRP of the primary and secondary synchronization signals of each downlink wave beam received, and selection meets the requirements
The grouping of best downlink wave beam or best downlink wave beam set.
Uplink sending module 803, for reporting best downlink wave beam grouping or best downlink wave beam set by RACH.
It should be noted that above-mentioned apparatus embodiment and embodiment of the method belong to same design, specific implementation process is detailed
Carefully see embodiment of the method, and the technical characteristic in embodiment of the method is corresponding applicable in Installation practice, which is not described herein again.
In addition, as shown in Figure 1, the terminal includes: memory, processor the embodiment of the invention also provides a kind of terminal
And it is stored in the computer program that can be run on the memory and on the processor, the computer program is by the place
The step of reason device realizes the accidental access method of above-described embodiment two when executing.In wireless communication system as shown in Figure 2, this hair
Bright embodiment additionally provides a kind of base station, which includes memory, processor and be stored on the memory and can be in institute
The computer program run on processor is stated, the computer program realizes one institute of above-described embodiment when being executed by the processor
The step of accidental access method stated.
Through the above description of the embodiments, those skilled in the art can be understood that above-described embodiment side
Method can be realized by means of software and necessary general hardware platform, naturally it is also possible to be realized by hardware, but very much
In the case of the former be more preferably embodiment.Based on this understanding, technical solution of the present invention is substantially in other words to existing
The part that technology contributes can be embodied in the form of software products, which is stored in a calculating
In machine readable storage medium storing program for executing (such as ROM/RAM, magnetic disk, CD), including some instructions are used so that a terminal device (can be
Mobile phone, computer, server, air conditioner or network equipment etc.) execute random access side described in each embodiment of the present invention
Method.
Preferred embodiments of the present invention have been described above with reference to the accompanying drawings, not thereby limiting the scope of the invention.This
Field technical staff without departing from the scope and spirit of the invention in made by any modifications, equivalent replacements, and improvements, should all this
Within the interest field of invention.
Claims (15)
1. a kind of accidental access method is applied to base station, which is characterized in that this method comprises:
Primary and secondary synchronization signals are sent in each downlink wave beam；
Terminal into cell sends broadcast message, and the downlink wave beam grouping in random access procedure is carried in the broadcast message
The requirement for the best downlink wave beam set that information and/or needs report；
After receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports, at least one downlink wave beam is selected
Subsequent downlink signal in random access procedure is sent to terminal.
2. accidental access method according to claim 1, which is characterized in that carry random access mistake in the broadcast message
Downlink wave beam grouping information in journey includes:
Under the number and each grouping being grouped by the system information block SIB indicating downlink wave beam in broadcast message include
Traveling wave beam.
3. accidental access method according to claim 1, which is characterized in that carry random access mistake in the broadcast message
The best downlink wave beam set for needing to report in journey requires to include:
Maximum wave beam number N and best in the best downlink wave beam set for needing to report by SIB in broadcast message instruction
The threshold value α of the Reference Signal Received Power RSRP of wave beam in downlink wave beam set, wherein N is natural number, value range 1
To downlink maximum wave beam number, α is performance number, and value range is that -130dBm arrives 0dBm.
4. accidental access method according to claim 1, which is characterized in that from the best downlink wave beam grouping or most preferably
At least one downlink wave beam is selected to include: in downlink wave beam set
Success rate, the selection of terminal access are improved according to the quantity of online terminal and the suitable wave beam of downlink system Capacity Selection
Suitable wave beam is to reduce the interference between downlink wave beam, and/or select suitable wave beam to improve the utilization of downlink frequency domain resource
Rate.
5. a kind of accidental access method is applied to terminal, which is characterized in that this method comprises:
After the broadcast message for receiving base station, the downlink wave beam grouping letter in the random access procedure carried in broadcast message is extracted
The requirement of breath and/or the best downlink wave beam set for needing to report；
The Reference Signal Received Power RSRP of the primary and secondary synchronization signals of each downlink wave beam received is measured, selection meets the requirements
The grouping of best downlink wave beam or best downlink wave beam set；
The best downlink wave beam grouping or best downlink wave beam set are reported by random access channel RACH.
6. accidental access method according to claim 5, which is characterized in that carried in the extraction broadcast message
Downlink wave beam grouping information in random access procedure includes:
The downlink wave beam that the number of the downlink wave beam grouping carried in extraction system block of information SIB and each grouping include.
7. accidental access method according to claim 6, which is characterized in that described to choose satisfactory best down going wave
Beam grouping includes: the RSRP of the primary and secondary synchronization signals on each wave beam that measurement receives, and is ranked up to the RSRP, will
The ranking results of the RSRP and the downlink wave beam grouping information are matched, and best downlink wave beam grouping is chosen.
8. accidental access method according to claim 5, which is characterized in that carried in the extraction broadcast message
Best downlink wave beam set in random access procedure includes:
In the best downlink wave beam set that the needs carried in extraction system block of information SIB report maximum wave beam number be N and
The threshold value α of Reference Signal Received Power RSRP, wherein N is natural number, and value range arrives downlink maximum wave beam number, α for 1
For performance number, value range is that -130dBm arrives 0dBm.
9. accidental access method according to claim 8, which is characterized in that described to measure each downlink wave beam received
Primary and secondary synchronization signals RSRP, choosing satisfactory best downlink wave beam set further comprises:
The RSRP of the primary and secondary synchronization signals on each wave beam received is measured, and the RSRP is ranked up, retains RSRP
More than the wave beam of thresholding α, in the wave beam for being more than thresholding, chooses RSRP highest n and be used as best downlink wave beam set, wherein
N is natural number, and n is less than or equal to N, and N indicates the number of wave beam in the best downlink wave beam set for requiring to report.
10. accidental access method according to claim 5, which is characterized in that it is described by RACH report it is described it is best under
The grouping of traveling wave beam or best downlink wave beam set include:
Additional information bit is sent when by sending leader sequence reports best downlink wave beam grouping or best down going wave constriction
It closes；Or
The RACH sequence for selecting the particular demographic among multiple RACH sequences, by under the group information instruction most preferably of RACH sequence
The grouping of traveling wave beam or best downlink wave beam set；Or
Time-domain resource by sending leader sequence indicates best downlink wave beam grouping or best downlink wave beam set；Or
Frequency domain resource by sending leader sequence indicate the grouping of best downlink wave beam or best downlink wave beam set one kind or
Any several combinations.
11. a kind of access device, it is applied to base station, which is characterized in that the device includes:
Synchronization signal sending module, for sending primary and secondary synchronization signals in each downlink wave beam；
Broadcast module sends broadcast message for the terminal into cell, carries in random access procedure in the broadcast message
Downlink wave beam grouping information and/or the requirement of best downlink wave beam set that needs to report；
Uplink receiving module, for receiving the grouping of best downlink wave beam or best downlink wave beam set that terminal reports；
Beam selection module, for being selected under at least one from the best downlink wave beam grouping or best downlink wave beam set
Traveling wave beam；
Downlink sending module, for being connect at random using at least one selected downlink wave beam to the terminal transmission for initiating access
Subsequent downlink signal during entering.
12. a kind of access device, it is applied to terminal, which is characterized in that the device includes:
Downlink reception module after the broadcast message for receiving base station, extracts the random access procedure carried in broadcast message
In downlink wave beam grouping information and/or the requirement of best downlink wave beam set that needs to report；
Measurement module measures the RSRP of the primary and secondary synchronization signals of each downlink wave beam received, chooses satisfactory best
Downlink wave beam grouping or best downlink wave beam set；
Uplink sending module, for reporting best downlink wave beam grouping or best downlink wave beam set by RACH.
13. a kind of base station, which is characterized in that the base station includes memory, processor and is stored on the memory and can be
The computer program run on the processor realizes such as claim 1 when the computer program is executed by the processor
The step of to accidental access method described in any one of 4.
14. a kind of terminal, which is characterized in that the terminal includes: memory, processor and is stored on the memory and can be
The computer program run on the processor realizes such as claim 5 when the computer program is executed by the processor
The step of to accidental access method described in any one of 10.
15. a kind of computer readable storage medium, which is characterized in that be stored on the computer readable storage medium and connect at random
Enter program, when the random access procedure is executed by processor, realization connects at random according to any one of claims 1 to 4
The step of entering method；And/or the step of realizing the accidental access method as described in any one of claim 5 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710425875.XA CN109041251A (en) | 2017-06-08 | 2017-06-08 | Accidental access method, device, base station, terminal and computer readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710425875.XA CN109041251A (en) | 2017-06-08 | 2017-06-08 | Accidental access method, device, base station, terminal and computer readable storage medium |
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| CN109041251A true CN109041251A (en) | 2018-12-18 |
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| CN201710425875.XA Pending CN109041251A (en) | 2017-06-08 | 2017-06-08 | Accidental access method, device, base station, terminal and computer readable storage medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954777A (en) * | 2019-12-10 | 2021-06-11 | 中国移动通信有限公司研究院 | Random access method and device |
| CN114520678A (en) * | 2020-11-19 | 2022-05-20 | 中国移动通信集团设计院有限公司 | Method and apparatus for transmitting broadcast beam, electronic device, and storage medium |
| WO2023207412A1 (en) * | 2022-04-28 | 2023-11-02 | 中兴通讯股份有限公司 | Beam management method, user device, base station, storage medium, and program product |
-
2017
- 2017-06-08 CN CN201710425875.XA patent/CN109041251A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112954777A (en) * | 2019-12-10 | 2021-06-11 | 中国移动通信有限公司研究院 | Random access method and device |
| CN112954777B (en) * | 2019-12-10 | 2023-10-27 | 中国移动通信有限公司研究院 | Random access method and device |
| CN114520678A (en) * | 2020-11-19 | 2022-05-20 | 中国移动通信集团设计院有限公司 | Method and apparatus for transmitting broadcast beam, electronic device, and storage medium |
| CN114520678B (en) * | 2020-11-19 | 2023-08-01 | 中国移动通信集团设计院有限公司 | Broadcast beam transmitting method and device, electronic equipment and storage medium |
| WO2023207412A1 (en) * | 2022-04-28 | 2023-11-02 | 中兴通讯股份有限公司 | Beam management method, user device, base station, storage medium, and program product |
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